No matter how well you know someone, traveling together will probably teach you something new about them. Maybe they get up early and have tons of energy. Maybe they’re a terrible tipper. Sometimes these things are annoyances, and sometimes they can lead to a big falling out. It doesn’t have to be that way, though.…

Flights are overbooked all the time, with the recent incident on a United flight an obviously terrible handling of the situation by the airline. But if you’re told you’re going to be bumped before you board, don’t volunteer to take the airline’s compensation—whether they offer cash or a voucher. You’re actually…